نتایج جستجو برای: isolate specificity
تعداد نتایج: 188815 فیلتر نتایج به سال:
Salmonella enterica subsp. enterica serovar Cerro is an infrequent pathogen of humans and other mammals but is frequently isolated from the hindgut of asymptomatic cattle in the United States. To further understand the genomic determinants of S. Cerro specificity for the bovine hindgut, the genome of isolate CFSAN001588 was fully sequenced and deposited in the GenBank database.
We reformulated a multiplex PCR algorithm for serotyping of pneumococcal meningitis directly on cerebrospinal fluid (CSF). Compared to established methods on isolates, CSF-based PCR had at least 80% sensitivity and 100% specificity. In regional meningitis surveillance, CSF-based PCR increased the serotype information yield from 40% of cases (isolate testing) to 90%.
Background: Visceral leishmaniasis (VL) can lead to death in more than 95% of cases if left untreated. Accurate and early diagnosis has an important role in reducing mortality rate of this disease. Objective: To express recombinant H2B antigen from an Iranian isolate of Leishmania Infantum and evaluate its efficacy in the diagnosis of VL. Metho...
تعیین ارزش تشخیصی روش آنالیز منحنی ذوب مبتنی بر Multiplex Real time برای شناسایی گونه های انتروکوکوس
Background and purpose: Enterococci as a group of bacteria infecting raw foods and dairy products can contaminate different food products. The purpose of this study was to isolate strains of enterococci based on the Real time PCR method using melting curve analysis in food samples. Materials and methods: In this experimental study, 510 samples were collected from which 138 different samples ...
Species of the Fusarium fujikuroi species complex (FFC) cause a wide spectrum of often devastating diseases on diverse agricultural crops, including coffee, fig, mango, maize, rice, and sugarcane. Although species within the FFC are difficult to distinguish by morphology, and their genes often share 90% sequence similarity, they can differ in host plant specificity and life style. FFC species c...
نهان کاوی کشف وجود پیام مخفی در یک سیگنال حامل مانند تصویر است. تکنیک نهان کاوی، روش نهان نگاری استفاده شده، پیام تزریق شده و تصویری که به عنوان حامل استفاده می شود از عواملی هستند که بر کشف درست وجود پیام مخفی در تصویر موثرند. تصویر حامل دارای ویژگی هایی نظیر ابعاد، فرمت و ... است. اما مهم ترین ویژگی های تصویر که می توانند بر کارایی نهان کاوی موثر باشند، ویژگی های محتوی آن است. در بیشتر تکنیک...
Human antibody Fab fragments that bind to hepatitis B surface antigen (HBsAg) were generated by using a recombinant phage surface-display expression system. Characterization of HBsAg-specific Fab fragments isolated from two vaccinated individuals reveals diversity in specificity of antigen binding and in the sequences of the complementarity-determining region. The sequence results show examples...
BACKGROUND Segmental ostial ablation of the pulmonary veins (PVs) allows for successful control of paroxysmal atrial fibrillation in many patients. We hypothesized that mapping of the left atrial-PV junction with a 64-electrode basket catheter would allow characterization of conduction patterns that would identify sites where ablation is required to electrically isolate the PV. METHODS AND RE...
specificity is determined by the condensing enzyme, namely 8-ketoacyl-[acyl-carrier-proteinlsynthase 11. For the barley complex they are CoA derivatives which give rise to the C,,, C,, and C,, 3-oxoacyl key intermediates. One can speculate that the condensing enzyme activity specified by the cer-cqu-determined polypeptide is responsible for the noted substrate specificity. Therefore, should one...
Background: Erysipelothrix rhusiopathiae (E. rhusiopathiae) is generally transmitted into the gastrointestinal tract of animals by the intake of contaminated food or water and causes great economic loss in agriculture worldwide. Some of the Erysipelothrix spp. are the causative agents of erysipeloid, which is an occupational infection in humans. The aim of the present study was to isolate E. rh...
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